Winter weather snarls roads around the country
Black ice is believed to be the cause of a freeway pileup involving more than a dozen tractor-trailers on I-84 in Oregon, Saturday, Jan. 17, 2015.
Icy roads
Ice hangs from a sign alongside an icy rural road Sunday, Jan. 18, 2015, near Newtown, Pa.
Rain "flash-freezing" on roads, sidewalks and commuter train platforms has made travel hazardous in the Northeast, leading to several highway closures and accidents that claimed at least four lives.
Icy roads
Cars piled up on the Cross-Bronx Parkway in New York on Sunday morning, Jan. 18, 2015.
Icy roads
Dozens of cars were involved in a weather-related multi-vehicle pileup on I-476 in Pennsylvania on Sunday, Jan. 18, 2015.
Icy roads
Dozens of cars were involved in a weather-related multi-vehicle pileup on I-476 in Pennsylvania on Sunday, Jan. 18, 2015.
Icy roads
More than 20 cars are piled up on the Schuylkill Expressway (I-76) in Philadelphia after freezing rain on Sunday, Jan. 18, 2015.
Slick roads caused a number of crashes, including collisions that also closed parts of Interstates 95 and 476 in and around Philadelphia.
Icy roads
This photo provided by the Oregon Department of Transportation shows the scene of an accident on I-84 in Oregon, Saturday, Jan. 17, 2015. Black ice is believed to be the cause of a freeway pileup involving more than a dozen tractor-trailers Saturday morning in eastern Oregon, police said.
Icy roads
A man filmed a tractor-trailer sliding out of control on the New Jersey Turnpike on Jan. 18, 2015.
Icy roads
Ice glazed New York roads caused numerous accidents, Sunday, Jan. 18, 2015.
Icy roads
Trucks and cars drive slowly on an icy rural road Sunday, Jan. 18, 2015, near Newtown, Pa.
Rain "flash-freezing" on roads, sidewalks and commuter train platforms has made travel hazardous in the Northeast, leading to several highway closures and accidents that claimed at least four lives.